Reddit reviews ORP SmartHorn and Bike Light - Blue

I recently was asking myself this same question, and consensus seemed to be the Air Zound is the loudest horn.

Delta Airzound Bike Horn , colors may vary https://www.amazon.com/dp/B000ACAMJC/ref=cm_sw_r_cp_tai_l5xYxbDSGJVRP

But I don't like the idea of needing an air reservoir for my horn. I have been using this for a while:

Hornit dB140 Cycle Horn with Remote Trigger https://www.amazon.com/dp/B006TDEV20/ref=cm_sw_r_cp_tai_l7xYxb01YQYW2

It's very loud but ruined by the sound it makes: it's a chirping noise and people look up in the trees on shared paths instead of looking back or moving over. I ordered and just yesterday received this:

ORP SmartHorn and Bike Light - BLUE https://www.amazon.com/dp/B00L3NK1O8/ref=cm_sw_r_cp_tai_K8xYxbH94B542

A light/horn combo, with two different sounds. It's loud, and if you get it off the Orp website they include the remote trigger for free. Haven't had a chance to try it out yet but my initial impression is very good.

Huge fan of my [Orp](ORP SmartHorn and Bike Light - BLUE https://www.amazon.com/dp/B00L3NK1O8/ref=cm_sw_r_cp_api_i_9iwaCb2HTQVG5) and [Remorp](REMORP https://www.amazon.com/dp/B01HEVQW8Q/ref=cm_sw_r_cp_api_i_BjwaCb0ZBHTX1) handlebar extension i've had for about 2 yrs now.
It has saved me countless times from being doored or sideswiped. The louder, more consistent setting is even loud enough to get a cop's attention. Source: SF biker who's almost been sideswiped many times by cops illegally pulling into bike lanes. They definitely stop when I blurp them.